[FFmpeg-trac] #2686(avcodec:open): Native AAC encoder collapses at high bitrates on some samples

[FFmpeg]

#2686: Native AAC encoder collapses at high bitrates on some samples
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             Reporter:  Kamedo2      |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  aac          |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by klaussfreire):

 The LPF could be accomplished by zeroing the coefficients in the FFT. To
 get the lowest possible ripple, the boundary coefficient needs some care,
 but AFAIR it's the best method, and it's free for something that's already
 doing FFT.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2686#comment:51>
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